<?php

if (! defined ( 'BASEPATH' ))
	exit ( 'No direct script access allowed' );
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package		CodeIgniter
 * @author		ExpressionEngine Dev Team
 * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license		http://codeigniter.com/user_guide/license.html
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */

// ------------------------------------------------------------------------


/**
 * CodeIgniter Number Helpers
 *
 * @package		CodeIgniter
 * @subpackage	Helpers
 * @category	Helpers
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/helpers/number_helper.html
 */

// ------------------------------------------------------------------------


/**
 * Formats a numbers as bytes, based on size, and adds the appropriate suffix
 *
 * @access	public
 * @param	mixed	// will be cast as int
 * @return	string
 */
if (! function_exists ( 'byte_format' )) {
	function byte_format($num, $precision = 1) {
		$CI = & get_instance ();
		$CI->lang->load ( 'number' );
		
		if ($num >= 1000000000000) {
			$num = round ( $num / 1099511627776, $precision );
			$unit = $CI->lang->line ( 'terabyte_abbr' );
		} elseif ($num >= 1000000000) {
			$num = round ( $num / 1073741824, $precision );
			$unit = $CI->lang->line ( 'gigabyte_abbr' );
		} elseif ($num >= 1000000) {
			$num = round ( $num / 1048576, $precision );
			$unit = $CI->lang->line ( 'megabyte_abbr' );
		} elseif ($num >= 1000) {
			$num = round ( $num / 1024, $precision );
			$unit = $CI->lang->line ( 'kilobyte_abbr' );
		} else {
			$unit = $CI->lang->line ( 'bytes' );
			return number_format ( $num ) . ' ' . $unit;
		}
		
		return number_format ( $num, $precision ) . ' ' . $unit;
	}
}


/* End of file number_helper.php */
/* Location: ./system/helpers/number_helper.php */